If the person beyond you has a deeded right of way, they might have standing to have the guy towed. Even if his vehicle isn't totally blocking the way, they might be able to argue that they have a right to the full width of the right of way for plowing, fire access, etc. But I still would recommend doing everything possible to keep the situation from getting confrontational. Property disputes can get UGLY! As founder of Maine ROADWays, (Residents & Owners on Abandoned & Discontinued Ways,) I see a lot of situations where one person claims they have a right to use a road, and another claims a right to block it. The law isn't always clear, especially on abandoned or discontinued roads, and trying to get it clarified through court action can get frightfully expensive, not to mention frustratingly unhelpful. All too often, one or the other of the parties ultimately takes things into their own hands, and it escalates into a Hatfields and McCoys situation. We're watching one of those unfold now, and it's scary. Hopefully where there is a properly organized road association, that won't happen. But you still are likely to have this guy as a neighbor indefinitely, so better to do your best to find an amicable way to settle it than to cultivate feelings of animosity.